Coin-controlled pumping device.



M. D.--'VAN AUKEN.

com CONTROLLED PUMPlNG DEVICE.

APPLICATION FILED MAY 20, I9l4.

Patented June 20, 1916.

2 SHEETSSHEET I.

rm: COLUMBIA PLANOGRAPH 1:0,, WASHINGTON, n. c.

M. D. VAN AUKEN.

COIN CONTROLLED PUMPING DEVICE.

APPLICATION FILED MAY 20. 1914.

Patented June 20, 1916.

2 SHEETSSHEET 2- m: COLUMBIA PLANDGRAPH 60.. WASHlNGT ON, D. C.

MARWOOD D. VAN AUKEN, OF NEW YORK, N. Y.

COIN-CONTROLLED PUMPING DEVICE.

Specification of Letters Patent.

To all whom it may concern Be it known that I, MARWOOD D. VAN AUKEN, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Improvement in Coin- Controlled Pumping Devices, of which the following is a specification.

This invention is an improvement upon the check controlled apparatus for pumps for which I filed an application for Letters Patent December 4, 1913, Serial Number 804,603. In the device referred to the operating handle is loose upon the shaft and was locked thereto by the insertion of a coin,

and was then unlocked after a predetermined number of rotations of the handle had been made. In this device only a fixed quantity of gasolene was delivered.

The invention which forms the subject matter of this application differs from the device above described in that the handle is fast to the shaft and the shaft is locked normally against rotation. Upon inserting a coin or check the shaft and handle are unlocked until a predetermined number of rotations have been made when they again become locked. Also in the present device while there is but one operating mechanism there are two coin receiving openings, one of which is adapted to receive a coin or check of a certain size whereby there is delivered a certain amount, as one gallon, of gasolene.

But when a coin or check of a difierent size is inserted into the other slot a larger number of gallons, as for example five or more are delivered, the number of gallons delivered upon the insertion of the second mentioned coin or check depending upon the number of teeth carried by a certain ratchet wheel, or an equivalent device. lVith these differences in mind the changes in construction necessarily involved thereby will be more readily understood.

In the accompanying drawings, Figure l is a front elevation of the device, a portion of the from being broken away and parts of the casing being shown in section. Fig. 2 is a plan view, a portion of a top of the casing being broken away and the parts being removed in order to show mechanlsm intimately associated with a rotatable shaft. Fig. 3 is a plan view the top being partly broken away and disclosing details of construction omitted from Fig. 2. Fig. 4c is a vertical section taken upon the line 4-4 of Fig. 1. Fig. 5 is a detail sectional view illustrating those parts most directly concerned with the delivery of five or more gallons of liquid. Fig. 6 is a detail section upon the line 66 of. Fig. 5. i

In the drawings 1 represents an operating handle fixed upon a shaft 1 and a threaded sleeve 1 is fixed upon and turns with the shaft or if desired may be formed on it, the handle shaft and sleeve may therefore,

Patented June so, rare.

be regarded as integral parts, and the said a shaft is the operating shaft of any suitable pumping device. The threaded sleeve 1 and a portion of the shaft are inclosed by a suitable casing 1. Within'the casing and fixed upon a suitable hub or enlargement of the shaft is a casting 2 which is notched as shown at 2 to receive a locking lug 8 carried by a slidable block 4:. As this device is designed to deliver either one gallon or several gallons of liquid by means of different checks, I place a pin 5, triangular in cross section uponthe upper face of the block 4: and in position to be engaged by a check intended to be used for the delivery of one gallon, and a similar pin 5 is placed on the block 4 to be engaged by another check designed to cause delivery of more than one gallon, preferably 5. The pin 5 is offset with respect to the pin 5. Suitable chutes 6 are provided to receive the coins or checks and convey them to the lower portion of the casing. Upon thethread 7 of the sleeves 1 works a suitable nut 8 and pivotally mounted'upon said nut is an angled lever 34- bifurcated to engage a suitable pin or roller 4:.

carried by a side of the block 4. An arm 9 or nut 8 carries an operating pawl 10 which is adapted to actuate a ratchet Wheel 11, the said arm moving inwardly with the nut 8 and the pawl 10 imparting a partial rotation to the ratchet wheel during each inward movement of the nut 8. This ratchet wheel is operatively employed only when more than one gallon is to be delivered and is provided with as many teeth as gallons are to be furnished for the check acting upon the pin 5. The mechanism is so designed that one gallon of liquid will be pumped during one complete movement of the nut 8 inwardly along the thread 7 and thence back to its original position. Where five gallons are to be delivered the nut will travel in and out five times and there will be a complete rotation of the five toothed ratchet wheel, each tooth being engaged once by-the pawl 10. The ratchet 11 is loosely mounted and turns idly mechanism hereafter described.

When a suitable check as indicated at A, Fig. 5 has been properly inserted said check is caused to passbeneath a plate 26 secured to the top of the casing, and across the upper end of a lever 12 carriedon a pivot pin 13. The lower end of this lever carries a laterally projecting pin 14 which engages an annular groove 15 of the clutch member 16. This clutch member carries a pin 16 which is adapted to enter. an alining opening 11 in the ratchet 11, and in the form shown there will be five of these openings, sothat one of them will at all times be in alinement with the pin 16% The depression of the lever12 by the check therefore locks the ratchet to its shaft 17, to which shaft the clutch 16 is secured, and the said shaft is slidable in its bearings. When the clutch 16 moves into locking engagement with the ratchet, a head 24 on the end of the shaft compresses a spring 17. A pawl 20 then drops into an annular groove'21 formed in the clutch 1'6 and holds the pin 16 in the opening 11 until there has been one complete rotation of the ratchet 11, when a pin 22 projecting into the groove 21, shown in Fig. 6, will lift the pawl 20 and permit the spring 17 to return the shaft to normal position and withdraw the pin 16 from engagement with the ratchet. 1

Itwill be noted from Fig. 3 that the upper endrof the lever 12 is immediately in advance of the. pin 5 and the check will rock the said lever before engaging said pin. Upon engaging the pin the check will have to pass between said pin and a roller 5 placed opposite the pin 5, and as the dis- 'tance between said pin and said roller is normally less than the diameter of the check, and as the position of the roller is fixed while the pin is carried by the slidableblock 4 the pin will move taking. with it the block 4, thereby withdrawing the lug 3 from the notch 2 and permitting rotation of the handle. A pawl '25 carried by the block 4 will engage the lever 12 and when the block 4 reaches its extreme rear movement the pawl 25 will snap behind the lever communicatin g 12, and the block 4 will be heldin unlock ing position until said lever-12 is withdrawn until locked by means of the jects above the casing and the shank of which works in a slot 32. Arranged beneath the slide plate 30 is a coin ejecting block 33 normally spaced by a spring 33 from a plate 33 fixed upon the under side of the slide plate.

It will be understood that the coin does .not remain in the upper part of the casing as a part of the operating mechanism but passes on to its chute 6 and has nothing to do after unlocking the handle and the shaft 1, and in the case of a five gallon check depressing lever 12. As soon as the check or coin reaches either the pin 5 or 5 it is checked just enough to cause the block to close up against the plate 33 compressing the spring 33. But as soon as the slide block 4 moves into unlocked position the movement of the pin opens a clear path to the check and the ejectingblock 33 springs back to normal position and thereby knocks the coin at once into its chute. This particular feature is fully shown and described in my application Serial Number 804,603. There is of course as indicated in Fig. 3 a block 33 for each coin opening.

As above explained when more than one gallon is to be delivered the amount depends upon the number of teeth carried by the ratchet wheel 11, but when only one gallon is to be delivered the check is insorted in the opening 29, and the ratchet wheel 11 turns loose on its shaft and plays no part in the operation of the device. In such case the amount delivered, usually one gallon, is regulated by the cam 35 upon the nut 8 which is engaged by a suitable roller carried by the pivoted lever 36 and which is connected by links 37 with the lever 34. As the nut travels inwardly, the handle being rotated in the direction indicated by the arrow on Fig. 1, the cam 35 forces downwardly the lever 36 thereby rocking the lever 34 and moving the block 4 inwardly and holding the same in unlocking position until the end of the reverse travel of the nut 8.

The travel of the nut is regulated by a suitable ratchet wheel 41 which is alternately engaged by pawls 38 and 39 and these pawls prevent the operator from reversing direction of rotation of the handle until the nut has completed its normal movement in one direction, either inwardly or outwardly, along the threaded portion of the sleeve. On the front end of the block 4 and immediately above the locking member 3, which is in the form of a projection or lug, is a pivoted latch 40 having a nose portion which normally rests upon the top of the casting 2. But on rotation of the handle the casting is withdrawn from beneath the nose of the latch and the latch drops upon the locking member 3 with its nose portion adjacent thereto. It must of course be kept in mind that the block 4: has also been moved inwardly being actuated by a check, and this inward movement will of itself tend to carry the nose portion of the latch also inwardly and out of alinement with the casting 2 permitting it to drop upon the locking member so that its nose portion will rest between the block at and the casting 2 and thereby prevent reentrance of the locking member 3 into the notch 2*. The latch 40 is a little wider than the extent of projection outwardly of the locking member 3, and consequently the locking member is entirely withdrawn from the notch 2 before inward movement of the block 4 would withdraw the latch from the casting 2-. As withdrawal of the member 3 from the notch 2 unlocks the handle, the rotation of the handle can therefore take place so that the casting turning with the handle is withdrawn from under the latch, so that both movement of the casting and inward movement of the block 4 can take place at the same time and both cooperate in separating the latch and the casting. It will be noted that an inner upper portion of the casting is cut out or beveled shown at 2, Fig. 2. On reversal of the handle, so that the casting is moving in the opposite direction to that indicated by the arrow, in Fig. 1, this beveled portion 2", will strike the latch 40, the block 4 having moved outwardly a sufficient distance, and will lift the latch, provided of course the block 4: is not held back by engagement of the pawl 25 with the lever 12. As soon as the latch is lifted the locking member 3 can again be projected into the notch 2, thereby again locking the handle against further rotation until a new check has been inserted.

1. The combination with a rotatable shaft, of means comprising a slidable block for normally locking said shaft against rotation, means operated through the instrumentality of a check for disengaging the said block from said shaft, means comprising a nut adapted to travel on the shaft for reciprocating said block, supplemental means for holding said block in an unlocking position, said supplemental means comprising a normally loose ratchet wheel, a clutch member adapted to engage said ratchet wheel, a coin operated lever for moving said clutch into engagement with the ratchet wheel, locking means carried by the slidable block and adapted to engage said lever when the clutch is in engagement with said ratchet Wheel, means for holding said clutch in engagement with said ratchet wheel until the said wheel has made a predetermined number of step by step movements, and means carried by said nut for rotating said ratchet wheel step by step.

2. In a device adapted to deliver a predetermined unit of liquid, a rotatable shaft, a nut traveling thereon, a reciprocating locking device for said shaft, a supplemental device for increasing the number of units delivered, said supplemental device comprising a check depressed lever, a shaft, a ratchet wheel loose thereon, a clutch member operatively connected to said lever, depression of the lever locking the clutch and the ratchet wheel, means for holding said clutch in engagement with said ratchet Wheel and holding said lever in depressed position until said ratchet wheel has made one complete rotation, means carried by said nut for giving intermittent motion to said ratchet wheel and means to disengage said locking device from said shaft.

3. In a device of the kind described, a rotatable shaft, a nut adapted to travel back and forth on said shaft during its rotation, an operating handle, a slidable block normally locking said handle against rotation, means for disengaging said block and permitting rotation of said handle, a second shaft, a ratchet wheel loosely mounted thereon, means carried by said nut for giving a partial rotation to said ratchet wheel upon each movement of the nut on the first mentioned shaft in one direction, a clutch on the second mentioned shaft adapted to engage the ratchet and lock the same to the shaft, a coin depressed lever operatively connected to said clutch and moving it into engagement with the ratchet wheel upon depression of the lever, a pawl adapted to engage said clutch and hold it in looking engagement with the ratchet wheel thereby holding the lever in depressed position, means carried by the slidable block adapted to engage said lever when depressed and hold said block out of locking position, and a pin carried by the second mentioned shaft and adapted to release said pawl at a predetermined time.

MARWOOD D. VAN AUKEN.

C. SILBERBERG.

Gopiet of this patent may be obtained for five eenta each, by midi-eating the Commissioner of Patents,

amhllnmon, D. C. 

